MQ-9 Gas Sensor (CO/Methane)
The MQ-9 Gas Sensor Module is a reliable gas detection sensor designed to detect Carbon Monoxide (CO), Methane (CH₄), and other combustible gases. It is widely used in gas leakage detection systems, air quality monitoring projects, industrial safety equipment, and Arduino/Raspberry Pi-based applications. The sensor provides both analog and digital outputs, making it easy to interface with microcontrollers and development boards.
Built with a sensitive semiconductor sensing element, the MQ-9 offers fast response times and stable performance. The onboard potentiometer allows users to adjust the sensitivity threshold according to their specific application requirements.
Features:
- Detects Carbon Monoxide (CO), Methane (CH₄), LPG, and other combustible gases
- High sensitivity and fast response
- Analog (A0) and Digital (D0) output pins
- Adjustable sensitivity via onboard potentiometer
- Compatible with Arduino, ESP8266, ESP32, Raspberry Pi, and other microcontrollers
- Long operational life and stable performance
- Easy-to-use module with power and signal indicators
Specifications:
- Operating Voltage: 5V DC
- Detection Gases: Carbon Monoxide (CO), Methane (CH₄), LPG, Hydrogen, and combustible gases
- Output Type: Analog and Digital
- Preheat Time: Recommended before accurate readings
- Response Time: Fast response and recovery
- Interface: 4-pin module (VCC, GND, A0, D0)
- Operating Temperature: -10°C to +50°C
Applications:
- Gas leakage detection systems
- Carbon monoxide monitoring
- Industrial safety systems
- Smart home automation
- Air quality monitoring projects
- Arduino and IoT-based gas sensing projects
- Fire and combustible gas alarm systems
Package Includes:
- 1 × MQ-9 Gas Sensor Module
